Nanopure™ Analytical 13-1
Thermo Scientific
Section 13
Troubleshooting
Problem
Possible Causes
Solutions
Nanopure completely inactive
(pump and display not operating)
No electrical power to Nanopure.
Ensure Nanopure power cord is connected to a live power source and
completely plugged into electrical outlet as well as power entry mod-
ule on the unit. Make sure on/off switch is in the “I” (on) position.
Main fuse(s) blown.
Replace the main fuse(s) as indicated in “Fuse Replacement.”
Power supply fuse blown
Contact Technical Services concerning power supply fuse replace-
ment.
Reduced or no product flow from
the dispense arm or remote dis-
penser (if attached).
0.2 micron filter clogged.
Replace final filter as indicated in “0.2 Micron Filter Replacement”
section.
Feed water not connected.
Reconnect feed water.
Display reads, “Check Inlet” and
pump does not run.
Pump protector (in reservoir), feed
water line pressure switch or
jumper plug not connected to pump
interlock.
Connect the pump protector, jumper plug or pressure switch cord to
the receptacle located on the upper left hand section of the Nanopure.
Insufficient feed water pressure or
volume to satisfy the Nanopure.
Open feed water line shut off, connect feed water line to Nanopure
and ensure sufficient pressure or sufficient water level in the feed
water reservoir).
Display reads, “...M
Ω
-cm” for
more than 10 seconds.
Air in cell.
If you just started your Nanopure, wait 1 minute to see if it corrects
itself.
Bad cell connection.
Check connection of the cell as it attaches to the circuit board.
Recirculated water will not rinse
up to desired purity level.
Exhausted cartridge pack.
Replace cartridge pack as indicated in “Cartridge Pack Replacement.”
Short cartridge pack life.
Cartridge pack is beyond expiration
date.
Check the expiration date. Cartridge packs begin to lose capacity after
being stored for 2 years from the date of manufacture. Replace the
cartridge pack with an unexpired one.
